30 
BULLETIN 1428, U. S. DEPARTMENT OF AGRICULTURE 
Table 7. — Shoi^t developmental period of the cadelle, egg to adult, completed 
during one season of activity 
Length 
Length 
Length 
Length 
No. 
Date egg 
laid 
Date egg 
hatched 
Incu- 
bation 
Date of 
first molt 
of 
first 
Date of 
second 
of 
second 
Date of 
third 
of 
third 
Date of 
fourth 
of 
fourth 
period 
larval 
molt 
larval 
molt 
larval 
molt 
larval 
stage 
stage 
stage 
stage 
1922 
1922 
Days 
1922 
Days 
1922 
Days 
1922 
Days 
1922 
Days 
1 — 
Apr. 27 
...do 
...do 
May 7 
-..do 
—do 
10 
10 
10 
May 23 
May 20 
May 18 
16 
13 
11 
June 3 
June 4 
—do- 
11 
15 
17 
June 20 
June 25 
June 20 
17 
21 
16 
25 
2 
20 
3 
"July'lJT 
23 
4 
...do 
...do 
10 
May 17 
10 
June 3 
17 
June 18 
15 
July 15 
27 
5 
...do 
...do 
10 
...do 
10 
June 1 
15 
June 17 
16 
July 6 
19 
6 
...do 
...do 
10 
May 25 
18 
June 3 
9 
June 18 
15 
July 5 
17 
7 
...do 
...do 
May 5 
_-_do 
_-do 
Mav 15 
10 
10 
10 
May 22 
...do 
May 28 
15 
15 
13 
.-do 
June 7 
June 6 
12 
16 
9 
June 20 
June 23 
June 21 
17 
16 
15 
25 
8 
24 
9_ — 
"July "26" 
29 
10... 
...do 
...do..... 
...do..... 
_..do 
.-do 
...do 
10 
10 
10 
May 29 
... do— 
—do- 
14 
14 
14 
...do- 
June 10 
June 17 
8 
12 
19 
June 19 
June 22 
June 29 
13 
12 
12 
26 
11... 
27 
12... 
"July" "li" 
15 
13._. 
...do.... 
May 6 
...do 
...do 
10 
9 
May 25 
May 27 
10 
12 
June 6 
June 10 
12 
14 
June 19 
June 21 
13 
11 
28 
14... 
"July "6" 
15 
15... 
...do 
...do 
...do 
...do 
9 
9 
May 28 
May 26 
13 
11 
June 6 
June 10 
9 June 
14 
13 
14 
16... 
15 
June 23 
"July" "12" 
19 
17... 
...do 
...do 
9 
— do— 
11 
...do 
15 
...do 
13 
July 10 
17 
18... 
May 5 
...do 
10 
--do 
11 
...do- 
15 
June 27 
17 
July 18 
21 
19... 
May 7 
May 16 
9 
May 29 
13 
June 6 
8 
June 18 
12 
July 11 
23 
20--. 
...do 
...do..... 
.-do 
...do 
9 
9 
May 31 
- do 
15 
15 
June 11 
...do 
11 
11 
June 27 
June 25 
16 
14 
20 
21... 
"July" II" 
16 
22... 
June 5 
...do..... 
...do— .. 
...do 
...do 
June 6 
...do 
...do 
June 12 
... do— 
...do 
—do 
_..do 
June 13 
__.do 
...do 
7 
7 
7 
7 
7 
7 
7 
June 24 
June 22 
June 24 
June 22 
June 23 
-..do- 
June 25 
.„do_... 
12 
10 
12 
10 
11 
10 
12 
12 
July 4 
July 3 
July 5 
July 3 
...do 
—do 
July 5 
July 6 
10 
11 
11 
11 
July 15 
July 13 
July 17 
Julv 13 
11 
10 
12 
10 
13 
10 
11 
13 
14 
23..- 
15 
24... 
12 
25_-_ 
16 
26_ _. 
10 Julv 16 
13 
27-_. 
10 
10 
11 
July 13 
July 16 
July 19 
16 
28.-- 
13 
29..- 
10 
30. _. 
...do 
June 11 
...do 
...do 
June 17 
-_.do 
7 
6 
6 
.-do 
June 26 
--do 
12 
9 
9 
July 5 
...do 
July 4 
10 
9 
8 
July 17 
July 18 
July 17 
12 
13 
13 
15 
31-.. 
11 
32--. 
12 
33__. 
June 13 
July 3 
June 20 
July 10 
7 
June 29 
July 20 
9 
10 
July 5 
July 31 
6 
11 
...do 
Aug. 16 
12 
16 
12 
34... 
24 
35... 
...do 
...do 
...do 
...do 
July 4 
...do 
—do— 
—do 
—do 
July 11 
7 
7 
7 
7 
...do— - 
— do...__ 
...do 
.-do 
July 21 
10 
10 
10 
10 
10 
Aug. 1 
July 31 
July 28 
July 31 
...do 
12 
11 
8 
11 
10 
...do 
Aug. 17 
Aug. 13 
Aug. 12 
Aug. 16 
15 
17 
16 
12 
16 
13 
36_.. 
17 
37... 
20 
38... 
23 
39... 
19 
1923 
40_._ 
Feb. 25 
Mar. 13 
16 
Apr. 12 
30 
May 1 
19 
May 20 
19 
18 
41. _. 
Feb. 27 
Mar. 14 
15 
Apr. 11 
28 
Apr. 30 
19 
May 22 
22 
22 
42... 
...do 
Mar. 2 
...do 
-..do- 
_-.do 
Mar. 17 
_..do 
—do 
15 
15 
15 
15 
...do 
Apr. 12 
Apr. 11 
May 5 
28 
26 
25 
49 
...do- 
May 1 
...do- 
May 20 
19 
19 
20 
15 
May 20 
May 21 
...do 
June 10 
20 
20 
20 
21 
18 
43... 
17 
44... 
17 
45. _. 
9 
i 
1 
Ave 
rage 
Date of 
Length 
of 
fifth 
larval 
stage 
Length 
Date Length 
Length 
me 
temj 
tur 
per 
from 
to a 
an 
No. 
forma- 
tion of 
prepupa 
Date of 
pupation 
of 
prepupal 
stage 
adult 
emerged 
of 
pupal 
stage 
of period 
from egg 
to adult 
3 of 
iod 
egg 
iult 
Food of h 
irvse 
1922 
Days 
1922 
Days 
1922 
Days 
Days 

F. 
1 
July 15 
July 25 
10 
Aug. 7 
13 
102 
79 
Graham flo 
ur. 
2..- 
...do 
July 24 
9 
Aug. 6 
13 
101 
79 
Do. 
3 
July 23 
16" 
Aug. 4 
12 
Aug. 17 
13 
112 
79 
Do. 
4__._ 
July 19 
4 
July 29 
10 
Aug. 10 
12 
105 
79 
Do. 
5 
July 15 
9 
July 26 
11 
Aug 7 
12 
102 
79 
Do. 
6 
Aug. 3 
29 
Aug. 11 
8 
Aug. 24 
13 
119 
79 
Corn. 
7--_. 
July 15 
July 25 
10 
Aug. 7 
13 
102 
79 
Do. 
8-_._ 
July 17 
.. 
July 24 
7 
Aug. 3 
10 
98 
79 
Do. 
9--__ 
July 28 
Aug. 4 
7 
Aug. 17 
13 
104 
79 
Do. 
10.. . 
July 15 
Julv 30 
15 
Aug. 11 
12 
98 
79 
Do. 
11... 
July 19 
July 29 
10 
Aug. 10 
12 
97 
79 
Do. 
12... 
Julv 21 
7 
July 31 
10 
Aug. 13 
13 
100 
79 
Do. 
13... 
July 17 
July 27 
10 
Aug. 8 
12 
95 
79 
Do. 
14... 
July 15 
~9~ 
—do- 
12 
-.do 
12 
94 
79 
Do. 
15... 
July 4 
... 
July 14 
10 
Julv 25 
11 
80 
80 
Do. 
16... 
July 23 
Aug. 3 
11 
Aug. 17 
14 
103 
79 
Do. 
17... 
July 19 
1 9 
July 29 
10 
Aug. 
10 
1 
2 
96 
79 
Do. 
